RXv3 core at 120 MHz — what the clock buys you
The R5F56609FDFP#30 runs a 32-bit RXv3 core at 120 MHz. That clock rate, combined with the 1 MB on-chip flash and 128 KB SRAM, gives you enough headroom for a real-time control loop with a moderate protocol stack — think CANopen or EtherCAT slave — without external memory.
Memory and I/O — sizing the BOM
Program memory is 1 MB of FLASH; data storage includes 128 KB SRAM and 32 KB EEPROM. The 90 available I/O lines and the peripheral set — DMA, LVD, POR, PWM, WDT — cover most sensor/actuator interfaces without glue logic. Connectivity includes CANbus, EBI/EMI, I²C, LINbus, SCI, and SPI. The 24-channel 12-bit ADC and dual 12-bit DAC handle analog front-end tasks directly.